沥青混合料蠕变柔量的一种实用模型及其应用

A PRACTICAL CREEP COMPLIANCE MODEL OF ASPHALT MIXTURES AND ITS APPLICATION

通过分析沥青混合料加载时的“固结效应”和卸载时的“永久变形”等流变学特征 ,提出了一个较为实用的流变学模型 ,并给出了模型参数的确定方法 ,该模型参数数目可多可少 ,且能满足Blotzmann叠加原理 ,可应用于应力随时间变化以及其它各种复杂应力状态的情况 .

A practical rheological model which can reflect 'consolidation effect' during loading and 'permanent deformation' after unloading for asphalt mixtures is proposed. The methodology of determining parameters of this model is also presented. The model can satisfy Blotzmann linear superposition principle, and can be applied in complex stress states where stresses vary with time.